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Performance Parameters of JBL Low-Frequency Systems Introduction This technical note will enable sound contractors and consultants to specify JBL LF enclo sures, transducers and packaged systems to fi
上传时间：2020-11-20 | 页数：8 | 格式：PDF | 浏览：236
A. Introduction: JBLs low frequency (LF) transducers tall into three major categories, based on their relative efficiencies. Those models in the lowest efficiency category exhibit high linearity and a
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Technical Notes Vol. 1, No. 4 Constant Directivity Horns L Introduction: In the last three years, constant directivity horns have virtually replaced the older radial and multi-cellular types in large-
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Technical Notes Volume 1, Number 7 In-line Stacked Arrays of Flat-front Bi-Radial Horns Introduction: Where excellent vertical pattern control in the 500 Hz range is desired, system designers will usu
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Technical Notes Vol. 1, No. 2 70-Volt Distribution Systems Using JBL Industrial Series Loudspeakers Theory of Line Distribution Systems In a typical paging, background music, or noise-masking system,
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Technical Notes Volume 1, Number 3 Choosing JBL Low-Frequency Transducers A. INTRODUCTION When JBL converted its low-frequency transducers from Alnico-V magnets to SFG ferrite structures in 1978, we t
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Too Little Amplifier Power Can Produce Too Much We occasionally hear of JBL owners who damage the high frequency components of their loudspeaker systems using amplifiers that are rated at less-rather
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Technical Notes Vof. 1, No. 5 Introduction: In order to facilitate the specification of JBL systems exhibiting flat power response, all JBL passive dividing networks have been redesigned to include HF
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Technical Note Vol. 1, No. 10 Use Of The 46120K, 4671 OK, And 4660 Systems in Fixed instaiiation Sound Reinforcement Introduction: For many small and medium scale sound reinforcement applications, pre
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T e c h n i c a l N o t e s V o l u m e 1 , N u m b e r 6 JBL High-frequency Directional Data in Isobar Form 1. Introduction: This Technical Note presents directional data on JBLs high-frequency horns
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Technical Notes, Volume 1 Number 12B Polarity Conventions of JBL Transducers and Systems Introduction: For most of JBLs existence, the company has designed many transducers and systems with a polarity
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Introduction: When Jim Lansing founded JBL in 1946, he brought with him a number of traditions devel- oped during his previous years at Lansing Manufacturing Company and at Altec-Lansing Corporation.
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Technical Note Volume 1, Number 15 INTRODUCTION: The purpose of this Technical Note is to offer selection criteria for both large and small monitor loudspeakers. Since early 1984, JBL and UREl monitor
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Technical Notes Vol. 1, No. 1 Performance Parameters of JBL Low-Frequency Systems Introduction This technical note will enable sound contractors and consultants to specify JBL LF enclosures, transduce
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Technical Notes Volume 1, Number 12 Polarity Conventions o f JBL Transducers and Systems 1. Historical Background: When James B. Lansing left Altec Lansing in 1946 to form what is now known as JBL Inc
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Technical Notes Volume 1, Number 8 Characteristics of High-Frequency Compression Drivers 1 Introduction: When a professional sound contractor or acoustical consultant specifies a JBL 2445 driver over
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Technical Notes Volume 1 , Number 11 Controlled Power Response: Its Importance in Sound Reinforcement System Design Introduction: Until the development in the last decade of uniform coverage HF horns
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Technical Notes Volume 1, Number 13 JBL Concert Series Complete Sound Systems Introduction The JBL Concert Series consists of loudspeaker systems and pre-packaged amplification and loudspeaker signal
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Technical Notes Volume 1 Number 18 Vented Gap Cooling in Low Frequency Transducers Introduction: JBLs ongoing research into low frequency transducer design has led to a new, more efficient method for
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Technical Notes Volume 1, Number 14 Basic Principles for Suspending Loudspeaker Systems Introduction: Contractors and sound installers hang loudspeaker equipment in public meeting places and performin
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